Device for securing together the binding edges of loose leaf filler sheets



Aug. 4. 1931.- c. B. IRVING 1,817,433

DEVICE FOR SECURING TOGETHER THE BINDING EDGES OF LOOSE LEAF, FILLERSHEETS Filed Jan. 14, 1929 INVENTOR, CZwzwee B I'M/7y.

/ ATTORNEY.

Patented Aug. 4, 1931:

UNITED, STATES PATENT OFFICE.

CLARENCE B. IRVING, OF KANSAS CITY, MISSOURI, ASSIGNOR, BY MESNE ASSIGN-MENTS, T WILSON-JONES COMPANY, 0

IVLA.SSACHIU'SETTS F CHICAGO, ILLINOIS, A. CORPORATION .OF

DEVICE FOR SECURING TOGETHER BINDING EDGES 0F LOOSE LEAF FILLER SHEETSApplication filed January 14, 1929. Serial No. 332,447.

come in the present invention by tightly bind-i.

, ing together all the leaves of the filler so that there is produced abinding effect between the leaves, thereby relieving the portions of thesheet at the ring of a great deal of the strain that would ordinarily beproduced when operating the book.

N '20 The principal object of the present inven-;

tion is the provision of adevice consisting of a pair of cooperatlngmembers adapted to be positioned on the rings of the binder and engagethe opposite sides of a loose leaf filler. positioned on said rings andmeans for securing said cooperating members in clamped re-.

' lation against opposite sides of said filler.

Another object of this invention is to pro-.

vide coperating clamping'members having T '30 means of adjustmentwhereby the sheets of fillers of diflerent thickness may be secured.

together.

Other objects are simplicity and economy Holes 17 should be elongated topermit the of construction, and ease of operation.

i '35 With these general objects in view as well as minor objects whichwill appear during the course of the detailed specification, refview ofthe securing device shown in the cooperating position;

Fig. 3, is an enlarged perspective view of the two members of thesecuring device shown in separated relation;

'50 Fig. 4., is an enlarged fragmentary sectional view showing thesecuring device in position on the filler and on the rings of the binderD 'on line VV of Fig. 2. Similar references designate like partsthroughout the several views and 10 designates the cover of a loose leafbinder and 11 the sheet-carrying member having a plurality of dividedrings 12 spaced apart to cor m Fi 5, is an enlarged sectional view takenrespond with holes 18 formed adjacent one edge of each of the fillersheets 14; 1

The loose leaf binder just described is of ordinary type and when thefiller is placed therein and the covers opened the sheets of the fillermay be moved on the ring independently of other sheets, thus separatingthe sheets and making it possible to easily tear that portion of thesheet'adjacent the ring openings.

'When the device for securing together the binding edges of the sheetsof the filler is positioned in the binder as hereinafterdescribed, thebinder may be used in the ordinary manner without clamping sheet-s together. 1

The present invention eliminates this difiiculty and provides for thesecuring together of the binding edges of the sheets of the filler bymeans of two cooperating members 15 and- 16 which are preferably made ofrelatively -na-rrow metal and provided with holes 17 adapted to receivethe rings of the binder.

free movement of 15 and 16 on the rings Members 15 and 16 are made'ofsuflicient length to overlap the opposite edges of the filler to permitthe securing together of these two members. Member 15 is provided at itsopposite ends with inturned parallel projec 'QO tions 18 and member 16is also provided with inturned parallel projections 19 which are spacedapart a slightly greater distance than are the projections 18 on'15, sothat the two members may be fitted together as shown in Fig. 2. One sideof each of the projections 19-is folded inwardly to form channels 20into which the adjacent edges of projections 18 are adapted 'to'beinserted. The opposite edges of projections. 19 are provided with wpivotally mounted latches 21 which engage and bind together the adjacentedges of the projections 18 and 19 when in the operative position. Forsecuring the members 15 and 16 together in a predetermined clampingposition against the filler, similar cooperating corrugations 22 and 23are provided on the projections 18 and 19 respectively. Thesecorrugations are disposed transversely and do not extend to the outeredges of the pro jections so that when the two members 15 and 16 arepressed to the closed position as shown in Fig. 4, similar corrugationswill intermesh and when latch 21 is moved to the closed position the twomembers will be securely locked together against outward position,member 15 is then fitted on one side of the binder with the rings 12extending through holes 17 and the member 16 is likewise positioned onthe opposite side in like manner. The filler 14: is then positioned onthe rings in the usual manner and rings 12 are then closed. The operatorthen opens latches 21, presses projections 18 into position in channels20 as described above, and moves the latches 21 to closed position asshown in Fig. 2, thus securing the binding edges of the filler sheets ina fixed relative position. When in this position the entire filler willmove as a unit on the rings 12, thus eliminating the possibility ofplacing too much strain on a single leaf against said rings which occursin the ordinary ring binder when the leaves are permitted to separate inthe ordinary Way.

While I have shown and described what appears to be the preferred formof embodiment of the present invention, yet I desire to reserve theright to make any such formal changes as may fairly fall within thescope of the appended claims.

What I claim is:

1. Ina loose leaf binder having ring hooks, metal plates adapted to bemounted upon said ring hooks and having interlocking ends, and clampsfor maintaining said interlocking ends in engagement. I

2. In a loose leaf binder having ring hooks, a pair of metal plateshaving flanged ends adapted to be mounted upon said ring hooks and meansfor securing said ends together in different positions.

3. In a loose leaf binder, ring hooks, a pair of cooperating membershaving interengag signature.

CLARENCE B. IRVING.

. ing angled portions mounted upon said ring

